foo.cc: In function 'int main()':
foo.cc:29:4: error: 'c' was not declared in this scope
   29 |    c=i/100;
      |    ^
foo.cc:30:4: error: 'd' was not declared in this scope
   30 |    d=i/10%10;
      |    ^
foo.cc:31:4: error: 'e' was not declared in this scope
   31 |    e=i%10;
      |    ^

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